Tornado Watch 508

Issued

Nov 14, 2020, 5:14 PM CST (23:14 UTC)

Expired

Nov 15, 2020, 1:00 AM CST

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

1 in

Strongest gust expected

60 kt

The Springfield radar (KSGF), 79 km from the middle of the area, began a volume at 23:15 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Two or more tornadoes

40%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

40%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

20%

One or more hailstones of 2 inches or more

10%

Six or more combined severe hail and wind reports

60%

• Mesoscale Discussion 1794 Severe potential...tornado watch likelyNov 14, 4:46 PM CST
• Mesoscale Discussion 1795 Tornado watch 508Nov 14, 7:34 PM CST
• Mesoscale Discussion 1796 Severe potential...watch possibleNov 14, 10:32 PM CST

640 
WWUS20 KWNS 142312
SEL8  
SPC WW 142312
ARZ000-KSZ000-MOZ000-OKZ000-150600-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 508
NWS Storm Prediction Center Norman OK
515 PM CST Sat Nov 14 2020

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Northwestern and north central Arkansas
  Extreme southeastern Kansas
  Much of central and southern Missouri
  Extreme northeastern Oklahoma

* Effective this Saturday afternoon from 515 PM until Midnight
  CST.

* Primary threats include...
  A couple tornadoes possible
  Scattered damaging wind gusts to 70 mph possible
  Isolated large hail events to 1 inch in diameter possible

SUMMARY...Thunderstorm development is underway in several bands
along and ahead of a cold front and dryline from northeastern
Oklahoma and southeastern Kansas into western Missouri.  The storm
environment will favor a mix of supercells and line segments capable
of producing a couple of tornadoes, damaging gusts, and isolated
large hail.  The primary threat will be confined to the western part
of the watch through about 9 pm CST, and in the eastern parts of the
watch from 9 pm to midnight.

The tornado watch area is approximately along and 85 statute miles
east and west of a line from 45 miles northwest of Columbia MO to 40
miles southeast of Fayetteville AR. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU8).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and severe thunderstorms in and close to the watch
area. Persons in these areas should be on the lookout for
threatening weather conditions and listen for later statements
and possible warnings.

&&

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1 inch. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 24050.

...Thompson

Tornado Watches in Missouri, 2020Tornado Watches in Arkansas, 2020Tornado Watches in Oklahoma, 2020Every tornado watch in 2020

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.